# SDR 372PA0004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 14, 2002
- Submitted: March 15, 2002
- Operation: Air carrier
- Aircraft: N372PA
- Make and model: Boeing 737306
- Aircraft serial: 23546
- Aircraft time: 32,171 hours, 25,466 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Autopilot Sys
- Stage of operation: CR
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/372PA0004

## Discrepancy

VNAV Disconnects in flight without command. Will not re-engage. All nav data lost. "Verify IRS position" message appears. CND.

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